Overhead-trolley suspension and feed-in ear.



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OVERHEAD TROLLEY SUSPENSION AND FEED-IN EAR.

APPLICATION FILED OCT-18 I915.

PatentedSept. 18, 1917.

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OVERHEAD-TBOLLEY SUSPENSION AND FEEID-IN EAR.

To all whom it may concern:

Be it known that I, JAMES SCOTT, citizen of the United States, residingat Cleveland, in the county of Cuyahoga and State of Ohio, have inventedcertain new and useful Improvements in Overhead-Trolley Suspensions andFeed-in Ears, of which the following is a specification.

This invention pertains to an overhead trolley suspension and feed-inear especially designed for use in center pole construction,substantially as shown and described and particularly pointed out in theclaims.

In the accompanying drawings, Figure 1 is a plan view of the ear ordevice in its present preferred form, and Fig. 2 is a side elevationthereof. Fig. 3 is a side elevation broken OK at the ends and sectionedout at the center to the middle thereof. Fig. I is a cross section online H, Fig. 2, looking inward but omitting hanger and wire shown asbroken off in Fig. 2. Fig. 5 is a side elevation of a modification ofthe ear, sectioned at the middle and Fig. 6 a plan view as hereinafterfully described.

The so-called ear or embodiment A is of the usual length and generaloutline in respect to size and style except as hereinafter noted, andprovided with the usual U-shaped trough or channel 2 at its bottomadapted to have the direct trolley wire clamped therein and providedwith strengthening ribs along its top.

The said suspension and feed-in ear, socalled and referred to hereinalso as a device, is shown in Figs. 1 to 4 as having an internallythreaded boss 2, adapted to engage a hanger h therein, a section ofwhich is seen in Fig. 2, and also in this instance as having a series ofsharp serrations or teeth I) extending upward about its edge and engagedby the flat annular shoulder on said hanger and which has a stem screwedinto said boss. I-Ieretofore it has been the universal practice, so faras I am aware, to make the top edge of the said boss plain, and while afairly good connection can be made in that way I have found that by theuse of sharp teeth or projections substantially as shown I can make amaterially improved connec tion. In the first place the hanger can beturned nearly or quite a quarter turn deeper than formerly because thepoints of the teeth will yield that much under pressure and then theyserve as a locking means to engage and hold the hanger. The importanceof Specification of Letters Patent.

Patented Sept. 18, 191?.

Application filed October 18, 1915. Serial No. 56,463.

this difference in favor of the toothed edge 6 lies in the fact that thedevice in a suspended position is subject to constant vibration andstrain at this joint, and unless it be securely fastened will workloose. By means of the sharp serrations or teeth this danger is reducedto the minimum. In other words the connection is made secure andpermanent.'

Another new and original improvement in the said device is the provisionfor securing the feed wire 3. It will be especially 11oticed that thesaid wire is seated in a comparatively deep socket 4, which stands at aninclination outward from the boss 2 and apart therefrom as seen in Figs.1, 2 and 3, so as to clear the span wire while the ear is being securedto the hanger, and said socket is provided with slots 5 about two-thirdsthe depth thereof which divide the socket into four equal quarterslengthwise. The inner dimensions of the said socket are such as toafford a comfortable entrance and seat for the wire and, being entered,the upper portion of the socket is clamped firmly on the wire and thewire is secured by means of solder 5, which fills the said slots andpractically incorporates the wire with the socket about its sides and inthe pocket 8 at its bottom.

I-Ieretofore it has been the practice to employ screws or like means tosecure the wire, but screws are very liable to work loose and permit thewire to pull out. By means of solder and the slotted socket I am enabledto make an absolutely secure and permanent union.

In Figs. 5 and 6 I show a form of ear A in which the hanger is omittedand the socket 4: for the wire 3 is placed at the middle of the ear.This style of ear is employed only in places where feed of current onthe line is wanted and may be at any needed point on the line. The slots8 in the socket at are present here also, and the pocket and bore 8 forthe solder at the bottom of the socket.

Respecting the hanger h it will be seen that it has a threaded stemadapted to screw into the said boss and an annular shoulder at the baseof the stem resting upon the teeth or serrations b.

What I claim is:

1. An ear for trolley wires as described having an internally threadedboss and saw tooth shaped serrations about the top edge thereof incombination With a hanger having a threaded stem engaged in said bossand a flat shoulder bearing upon said serrations.

2. As a new article of m'ainifactnre an ear for trolley Wires having anopen channel lengthwise from end to end in its bottom, a

boss at its middle to secure a hanger thereinand an inclined and slottedsocket for a feed Wire apart from said boss toward one end of the earthe bottom of said socket having an opening communicating With saidchannel.

3. A suspension and feed in ear for trolley lines having a base providedWith an open channel for a trolley Wire and a'slotted socket for a feedire provided with an opening in its bottom coninnuiicating with saidchannel.

4. A suspension ear for trolley lines having an open channel lengthwisein its bottom for a trolley Wire and a slotted socket for a v JAMESSCOTT. Witnesses GEO.- E. iKRIOKER, F. C. HARROLD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents;

Washington, D. G. 7

